Carb ID and app

Tom Meyer · 11-06-2015, 08:24 PM

Need a carb id and what it would have come on. 7028210 Q Jet, was on a 69 chevelle 325 / 396 auto nov 68 production date, is this the correct carb for this app? Tom

dondon · 11-06-2015, 08:54 PM

it's for a 68 385hp 727 auto

MAURICE BLENDHEIM · 11-08-2015, 12:17 PM

Tom…1968 Camaro 396-325HP with Automatic. MB

Mike Jones · 11-08-2015, 12:29 PM

Quote:

Originally Posted by Tom Meyer

Need a carb id and what it would have come on. 7028210 Q Jet, was on a 69 chevelle 325 / 396 auto nov 68 production date, is this the correct carb for this app? Tom

here is a link:
http://quadrajetparts.com/decode-you...retor-t-5.html
another site I went to agreed with this
looks like 68, non California, automatic trans.
didn't see engine / model specific info.
Good Luck

Mike A114
P/SA

dondon · 11-08-2015, 06:52 PM

a 1968 396/325 hp is a 7028218. you can check NHRA web site under engine blueprint specs. they have the correct numbers

GTX JOHN · 11-12-2015, 01:38 AM

Does the number matter to NHRA as long as internal dimensions are correct?

Jim Wahl · 11-12-2015, 04:04 AM

Quote:

Originally Posted by GTX JOHN

Does the number matter to NHRA as long as internal dimensions are correct?

No. Short answer. Jim

.

Tom Meyer · 11-12-2015, 08:56 AM

This is for a resto, needs to be the right numbers match that I think now is 702900. Did you know that the min spec has a 15ths grace measurement. Tom

Mike Jones · 11-15-2015, 09:52 AM

Quote:

Originally Posted by Tom Meyer

This is for a resto, needs to be the right numbers match that I think now is 702900. Did you know that the min spec has a 15ths grace measurement. Tom

Tom,
Should it be 7 digits?

Mike A114
P/SA

Greenlight · 11-23-2015, 01:08 AM

Rochester Carb. Stamping Codes

First part of stamping number:
702 - Late 1960's
703 - Late 1960's with Air Injector Reactor (some exceptions exist)
704 - 1970-1975
1705 - 1976-1979
1708 - 1980's

Then Model Year (i.e., 7=1967, 9 = 1969, 0=1970, etc.)

Then Carb. Type
0 - Monojet, Federal Emissions
1 - Two Jet, Federal Emissions
2 - Quadrajet, Federal Emissions
3 - Monojet, California Emissions
4 - Two Jet, California Emissions
5 - Quadrajet, California Emissions
6 - VariJet, Federal Emissions (2 barrel)

Then Division of GM

0, 1, and 2 were all used by Chevrolet (2 used on Cadillac also).
3 - Cadillac
4 - Buick
5 - Olds
6,7 - Pontiac

Then transmission type
0,2,4,6,8 Automatic Transmission (some exceptions exist)
1,3,5,7,9 Manual Transmission (some exceptions exist)

On some carburetors there is a production code (usually a two letter code) stamped below the numerical ID code.

On some carburetors there is a manufacturing date code below the production code.

Example: 2277 would indicate the 227th day of 1967 or 1977, depending on the year specified in the ID code.

11-06-2015, 08:24 PM	#1
Tom Meyer Senior Member Join Date: Aug 2003 Location: Pierce NE Posts: 933 Likes: 74 Liked 351 Times in 120 Posts	Carb ID and app Need a carb id and what it would have come on. 7028210 Q Jet, was on a 69 chevelle 325 / 396 auto nov 68 production date, is this the correct carb for this app? Tom __________________ Tom Meyer 5240 SS Stock ???

11-06-2015, 08:54 PM	#2
dondon Junior Member Join Date: Dec 2012 Posts: 28 Likes: 10 Liked 10 Times in 5 Posts	Re: Carb ID and app it's for a 68 385hp 727 auto

11-08-2015, 12:17 PM	#3
MAURICE BLENDHEIM Senior Member Join Date: Jun 2011 Location: Langley (no igloos), British Columbia, Canada Posts: 567 Likes: 306 Liked 277 Times in 86 Posts	Re: Carb ID and app Tom…1968 Camaro 396-325HP with Automatic. MB

11-08-2015, 06:52 PM	#5
dondon Junior Member Join Date: Dec 2012 Posts: 28 Likes: 10 Liked 10 Times in 5 Posts	Re: Carb ID and app a 1968 396/325 hp is a 7028218. you can check NHRA web site under engine blueprint specs. they have the correct numbers

11-12-2015, 01:38 AM	#6
GTX JOHN VIP Member Join Date: Jun 2009 Location: Boulder City, Nevada 89005 Posts: 2,720 Likes: 2,768 Liked 2,429 Times in 688 Posts	Re: Carb ID and app Does the number matter to NHRA as long as internal dimensions are correct? __________________ John Irving 741 Stock 741 Super Stock

11-12-2015, 08:56 AM	#8
Tom Meyer Senior Member Join Date: Aug 2003 Location: Pierce NE Posts: 933 Likes: 74 Liked 351 Times in 120 Posts	Re: Carb ID and app This is for a resto, needs to be the right numbers match that I think now is 702900. Did you know that the min spec has a 15ths grace measurement. Tom __________________ Tom Meyer 5240 SS Stock ???

11-23-2015, 01:08 AM	#10
Greenlight Member Join Date: Dec 2004 Posts: 215 Likes: 16 Liked 79 Times in 22 Posts	Re: Carb ID and app Rochester Carb. Stamping Codes First part of stamping number: 702 - Late 1960's 703 - Late 1960's with Air Injector Reactor (some exceptions exist) 704 - 1970-1975 1705 - 1976-1979 1708 - 1980's Then Model Year (i.e., 7=1967, 9 = 1969, 0=1970, etc.) Then Carb. Type 0 - Monojet, Federal Emissions 1 - Two Jet, Federal Emissions 2 - Quadrajet, Federal Emissions 3 - Monojet, California Emissions 4 - Two Jet, California Emissions 5 - Quadrajet, California Emissions 6 - VariJet, Federal Emissions (2 barrel) Then Division of GM 0, 1, and 2 were all used by Chevrolet (2 used on Cadillac also). 3 - Cadillac 4 - Buick 5 - Olds 6,7 - Pontiac Then transmission type 0,2,4,6,8 Automatic Transmission (some exceptions exist) 1,3,5,7,9 Manual Transmission (some exceptions exist) On some carburetors there is a production code (usually a two letter code) stamped below the numerical ID code. On some carburetors there is a manufacturing date code below the production code. Example: 2277 would indicate the 227th day of 1967 or 1977, depending on the year specified in the ID code.